fkie_cve-2017-7979
Vulnerability from fkie_nvd
Published
2017-04-19 23:59
Modified
2025-04-20 01:37
Severity ?
Summary
The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via "tc filter add" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | 4.11 | |
| linux | linux_kernel | 4.11 | |
| linux | linux_kernel | 4.11 | |
| linux | linux_kernel | 4.11 | |
| linux | linux_kernel | 4.11 | |
| linux | linux_kernel | 4.11 | |
| linux | linux_kernel | 4.11 |
{
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{
"nodes": [
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"matchCriteriaId": "45227BEA-300E-4694-8ADE-D0FA7C560C83",
"vulnerable": true
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via \"tc filter add\" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org."
},
{
"lang": "es",
"value": "La caracter\u00edstica cookie en la implementaci\u00f3n del paquete de acci\u00f3n API en net/sched/act_api.c en el kernel de Linux 4.11.x hasta la versi\u00f3n 4.11-rc7 no maneja adecuadamente el array tb nlattr, lo que permite a usuarios locales provocar una denegaci\u00f3n de servicio (acceso a memoria no inicializado y desbordamiento inferior de conteo de referencias y cuelgue o ca\u00edda de sistema) o posiblemente tener otro impacto no especificado a trav\u00e9s de comandos \"tc filter add\" en ciertos contextos. NOTA: esto no afecta a kernels estables, como 4.10.x, de kernel.org."
}
],
"id": "CVE-2017-7979",
"lastModified": "2025-04-20T01:37:25.860",
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"vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
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"published": "2017-04-19T23:59:00.153",
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"weaknesses": [
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"value": "CWE-20"
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],
"source": "nvd@nist.gov",
"type": "Primary"
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]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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